It is an interesting question but if you were asked it at the interview in terms of 'we only have Airbus slots at the mo, and you are a Boeing driver.....' What would you say?
You don't really have a choice, if there are Boeing slots you'll get them, if the Airbus is the flavour of the month it will be on that beast. If you don't believe me just go back a couple of years.
As to Commands, the Boeing is preferable at the moment but it was the Airbus 2 years ago and when the 380 comes it may well change around again. As far as routes are concerned, they switch around continuously and when the 380 turns up it will all change again, as it will when the 330 is replaced.
From my point of view I don't like 3 day trips, other people do. The bottom line for me would be; Do I really want to join EK, yes or no and then see how the chips fall. I guarantee there were a lot of guys that were planning before they joined and then were shocked to find how policy changes, route changes etc screwed the plan up. If you can't control it, don't sweat it.
2 articles from todays Gulf News, shows how little reality there is to this place:
http://www.gulfnews.com/business/Economy/10049780.html
http://www.gulfnews.com/business/Economy/10049798.html
One says that inflation is running at 7% and will drop to 4% by years end. The other says that Dubai has risen from 73rd to 25th most expensive city in the world ahead of LA, Amsterdam etc due to an inflation spike! The government statisticians could be accused of having their heads in the sand.